WÄRTSILÄ PAAE051728, Instruction Manual

Page: 190 / 394

6 Clean the big end upper half carefully. Lubricate the
bearing surface and back side of the bearing shell with oil.
Mount the shell, so that the lug guides in its groove.
Note! It is very important that the bearing shells are mounted straight.
7 Lift the upper big end half with the sledge in the mount-
ing flute.
8 Push the upper big end half carefully against the crank-
shaft, take care not to damage the crank pin.
9 Clean the big end lower half carefully.
Lubricate the
bearing surface and back side of the bearing shell with oil.
Mount the shell, so that the lug guides in its groove.
Note! It is very important that the bearing shells are mounted straight.
10 Lift the big end lower half on the sledge.
11 Push the lower big end half carefully against the
crankshaft and check that guiding pins are in right position,
take care not to damage the crank pin.
12 Mount the nuts and tighten by hands.
13 Remove the sledge from operating side of the engine.
14 Remove the sledge from rear side of the engine by open-
ing the nuts.
15 Mount the mounting support 800102 on the upper crank
case stud, see Fig 11-5. Tighten the nut.
16 Remove the mounting flute and supporting plate by
opening nuts.
17 Lift the hydraulic tools 800020 in to the position.
18 Connect the hoses of the hydraulic pump 800053 and
proceed with tightening of the nuts in two steps as described
in adjacent figure. Tightening torques see section 07.3.
Caution! The screws will be overloaded if the maximum hydraulic
pressure is exceeded.
It is recommended to change the screws if maximum hydrau-
lic pressure is exceeded for some reason.
19 Fasten the lifting tool 800012 to the piston crown by us-
ing hexagon socket head screws M12
×
40 (6), see Fig 11-3.
20 Lift the piston and upper part of connecting rod.
Hydraulic oil
REASSEMBLING
1. Lift the distance sleeve.
2. Lift the hydraulic cylinder and
screws in a one package in pos.
3. Connect hoses, open valve.
4. Tighten the tool assembly,
until the piston and cylinder is
on the same level.
5. Close the valve, pump to
required pressure.
Tighten the nuts. Release the
pressure slowly.
6. Repeat steps 4, and 5.
7. Open the valve slowly and
remove the tool.
11 Crank Mechanism: Crankshaft, Connecting Rod, Piston 32-200020
11 - 12 WÄRTSILÄ 32